Others are cabbage, cauliflower, beans and pulses, as well as polyol sweeteners that are often found in sugar-free versions of popular confectionary.

According to experts, the diet includes sugars that are easily broken down and absorbed within the small intestine, thereby preventing symptoms associated with IBS.

Dr Peter Irving, consultant gastroenterologist at the London Clinic and London Digestive Health, revealed: 'In the past, studies of dietary treatments have either been of variable quality or have produced conflicting results.

MOST POPULAR

'In contrast to this, the 'Low FODMAP' diet has been shown to be effective in a high-quality, placebo-controlled trial and is also supported by data from other studies investigating how it works.'

NHS experts recommend keeping a food diary so that any 'trigger foods' can be identified and avoided.

People with IBS may also benefit from taking regular exercise, consuming probiotics and minimising stress.

The materials in this web site are in no way intended to replace the professional medical care, advice, diagnosis or treatment of a doctor. The web site does not have answers to all problems. Answers to specific problems may not apply to everyone. If you notice medical symptoms or feel ill, you should consult your doctor - for further information see our Terms and conditions.